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1-20 of 68
Keywords: mechanics
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Proceedings Papers
Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-081
... of the pillar failure can be vital. Therefore, it is essential to fully understand the mechanics behind these failures in order to predict and control them. As suggested by Tincelin and Sinou [1], pillar failures can be classified into two categories: Slow, progressive deterioration of the pillars that causes...
Proceedings Papers
Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-011
... of geological and mining conditions were used to identify the most significant factors contributing to stress bumps in coal mines. Twenty-five factors were considered initially (mechanical properties of strata, stress fields, face and pillar factors of safety, joint spacings, mining methods, and stress...
Proceedings Papers
Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-160
... Rudbar mechanics Rock Mechanics and Rock Engineering: From the Past to the Future Ulusay et al. (Eds) © 2016 Taylor & Francis Group, London, ISBN 978-1-138-03265-1 Empirical and numerical approach to stability analysis of pumped storage cavern in Rudbar, Loresan, Iran N. Houshmand, K. Shahriar...
Proceedings Papers
Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-141
... 10 000 towns in France. We have studied the physico-mechanical behaviour and ageing of two types of chalk in underground quarries in the Parisian Basin, France. The dolomitic chalk (Saint-Martin-Le-Nœud) exhibits variations in mechanical and physical properties with horizontal pillar depth, and both...
Proceedings Papers
Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-156
... ABSTRACT: Discontinuity geometry and its mechanical properties as well as opening dimensions influence the instability of the shallow underground excavations. Due to wide range of bedding structures, in this research authors tried to analyses such structure using small scale experimental...
Proceedings Papers
Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-188
... crack propagation reservoir outer crack wellbore mechanics fracture propagation fracture isolength crack Rock Mechanics and Rock Engineering: From the Past to the Future Ulusay et al. (Eds) © 2016 Taylor & Francis Group, London, ISBN 978-1-138-03265-1 Analysis of geometrical parameters...
Proceedings Papers
Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-040
... geostress and he found Poisson's ratio increased with the increasing confining pressure (Huang & Zhuang 1985). You explained the mechanical meaning of Poisson's ratio and invented a method to measure Poisson's ratio by decreasing the confining pressure after triaxial compression tests (You & Hua...
Proceedings Papers
Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-031
... monsonite Ghamgosar toughness Erarslan hydraulic fracturing Brazilian test specimen fracture toughness test tensile strength Upstream Oil & Gas fracture toughness investigation rock type mechanics Engineering Rock mechanics tensile stress Laboratory Result Rock Mechanics...
Proceedings Papers
Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-046
... the central borehole until the specimens failed by tensile fracturing. Numerical modeling incorporating fracture mechanics was used to obtain a relation between tensile fracture growth and injection pressure. The calculated injection pressure at specimen breakdown is only depending on the fracture toughness...
Proceedings Papers
The Past Revisited: The Giants Behind the Elastic Solutions for Stresses Around Underground Openings
Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-063
.... 1 INTRODUCTION The mathematical solutions for elastic stresses around underground openings or excavations with simple geometry were extensively used and applied in rock engineering between the 1950s and 1970s when rock mechanics was at the beginning of its maturation period (Terzaghi & Richart...
Proceedings Papers
Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-039
... ABSTRACT: Rock fracture mechanics has been widely applied to various fields of rock and civil engineering. But most researches covered mode I behavior, though mode II is dominant in rock engineering. Currently, there is only one ISRM suggested method for mode II toughness of rock. New mode II...
Proceedings Papers
Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-069
... flow in porous media node porosity hydraulic fracturing Rock mechanics Artificial Intelligence Upstream Oil & Gas triaxial compression deformation Shirahama sandstone permeability evolution evolution asahina modeling permeability evolution Modeling & Simulation Fluid...
Proceedings Papers
Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-098
... minimize its catastrophic results through proper safety and precautionary measures. 1 INTRODUCTION The investigation of the formation mechanisms of sliding surfaces in different types of landslides is an open problem of scientific research. Especially for the catastrophic landslides that have a major...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-123
... Abstract Lithification is a chemical process that involves the precipitation of minerals from the pore fluid, thus affecting the pore structure and the mechanics of inter-granular contacts. In parallel with such process, grain crushing and cement fracture are basic drivers of long-term...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-124
... method flow in porous media fracture density effective transport property permeability CCM model aspect ratio matrix percolation threshold mechanics ABSTRACT: In the paper, two modeling strategies for the computation of the effective permeability of heterogeneous, fractured rocks utilizing...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-102
... Abstract The assessment of geological repositories for hazardous materials requires the modelling of coupled phenomena involving mechanical and fluid transport processes. In many poromechanical simulations, material parameters such as the elastic stiffness or the permeability are assumed...
Proceedings Papers
Gerhard Pittino, Robert Galler, Markus Mikl-Resch, Richard Tichy, Werner Ecker, Thomas Antretter, Martin Gimpel, Hubert Kargl
Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-040
... induced by the mechanical cutting tool (Rojek et al. 2011). The tool-rock interaction determines the forces on the pick and thus the required work. The reduction of tool forces at steady excavated volume is rewarded with increasing cutting efficiency (Tockner 1999). Three forces are distinguished in rock...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-138
.... Reservoir Characterization perzyna viscoplasticity rock slope stability viscoplasticity shear stress Artificial Intelligence calculation international journal algorithm Upstream Oil & Gas zero-thickness interface element stability expression Zienkiewicz mechanics Engineering viscoplastic...
Proceedings Papers
A Strain-Dependent Strength and Dilation Model of Rock to Study Pre-Peak Behaviour in Confined Tests
Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-139
...Rock Engineering and Rock Mechanics: Structures in and on Rock Masses Alejano, Perucho, Olalla & Jiménez (Eds) © 2014 Taylor & Francis Group, London, 978-1-138-00149-7 A strain-dependent strength and dilation model of rock to study pre-peak behaviour in confined tests J. González-Cao Departamento...
Proceedings Papers
Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-181
...Rock Engineering and Rock Mechanics: Structures in and on Rock Masses Alejano, Perucho, Olalla & Jiménez (Eds) © 2014 Taylor & Francis Group, London, 978-1-138-00149-7 Pit excavation for underground construction in an urban area near an old tunnel . Arbanas & M. Vivoda Faculty of Civil...
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